2012 Dodge Grand Caravan Fuel Pump Relay Location: A Complete Guide to Finding and Fixing It

The fuel pump relay on a 2012 Dodge Grand Caravan is located inside the engine compartment fuse box, also known as the Totally Integrated Power Module (TIPM). This black box sits near the battery on the driver's side of the engine bay. However, unlike older vehicles with a simple plug-in relay, the 2012 Grand Caravan’s fuel pump relay is soldered onto the circuit board inside the TIPM. This means you cannot simply pull it out and swap it. If the relay fails, you have three options: replace the entire TIPM, have a specialist replace the internal relay, or install a bypass relay. This guide will walk you through exactly where to look, how to diagnose the problem, and the most practical fix for a DIY owner.

Where Is the Fuel Pump Relay Located?

Step 1: Open the hood. The fuse box (TIPM) is a large black box located directly next to the battery, on the passenger side of the engine bay.

Step 2: Remove the cover. Press the release tabs on the sides of the TIPM cover and lift it off. On the underside of the cover, you will find a diagram showing the location of all fuses and relays.

Step 3: Understand what you are looking at. The TIPM contains both cartridge fuses (large, rectangular) and mini fuses (small, standard-sized). The fuel pump relay is not a separate, removable cube like the other relays. It is a small black component soldered directly onto the TIPM circuit board. You will not see a "fuel pump relay" labeled as a removable part. Instead, the fuse labeled M25 (a 20-amp mini fuse) is the fuse that protects the fuel pump circuit.

Key point: If you are looking for a standard plug-in relay, you will not find one. The 2012 Grand Caravan uses an integrated relay. This is a known design feature of Chrysler TIPMs from this era.

How to Diagnose a Bad Fuel Pump Relay

Before you start buying parts, you need to confirm the relay is the problem. Here are the symptoms and a simple test.

Common Symptoms:

  • Engine cranks but does not start.
  • No fuel pump noise when you turn the key to the "ON" position. You should hear a brief 2-second hum from the rear of the vehicle.
  • Intermittent starting issues, especially when the engine is cold.
  • The engine starts fine with starter fluid, but then dies.

The Quick Test (The M25 Fuse Method):

  1. Locate the M25 fuse inside the TIPM.
  2. Have a helper turn the ignition key to the "ON" position. Do not start the engine.
  3. Use a multimeter set to DC voltage. Probe the metal test points on top of the M25 fuse.
  4. You should see 12V for about 2 seconds, then it drops to 0V. This is normal priming.
  5. Now, have your helper crank the engine. While cranking, you should see a constant 12V on the M25 fuse. If you do not see 12V while cranking, the fuel pump relay inside the TIPM has failed.

Three Ways to Fix a Failed Fuel Pump Relay

Once you have confirmed the relay is bad, you have three repair paths. Each has different costs and skill requirements.

1. Replace the Entire TIPM (Most Expensive, Least DIY)
This is the official repair method. A new TIPM can cost between $400 and $1,200, and it requires dealership-level programming tools to pair it with your vehicle's computer. This is generally not recommended for a DIY owner unless you have no other option.

2. Replace the Internal Relay on the Circuit Board (Moderate Skill)
This is a cheaper option, but it requires good soldering skills. You can find replacement relays online with the same part number. The process involves:

  • Opening the TIPM case.
  • Locating the fuel pump relay on the circuit board.
  • Using a soldering iron to desolder the old relay and solder in the new one.
  • A mistake here can damage the TIPM permanently. If you are not confident, you can send your TIPM to a specialist repair service.

3. Install a Bypass Relay (Easiest and Most Common DIY Fix)
This is the most popular and practical solution for the 2012 Grand Caravan. It involves wiring an external, standard relay to take over the job of the failed internal relay. This bypasses the faulty component without replacing the TIPM.

How to Wire a Bypass Relay

What you will need:

  • A standard 30/40 Amp 12V automotive relay (SPDT or SPST)
  • A relay socket with wires
  • An inline fuse holder with a 20-amp fuse
  • 16-18 gauge wire
  • Wire strippers, crimpers, and electrical tape or heat shrink
  • A multimeter
  • Zip ties

Step-by-Step Wiring Instructions:

  1. Disconnect the negative battery cable. This is critical for safety.
  2. Locate the TIPM connectors. You need to access the C1 and C5 connectors on the TIPM.
  3. Find the wires:
    • Brown wire (Terminal 40 of C1): This is the fuel pump power wire. It carries 12V to the pump. Cut this wire about 1 inch from the connector. Insulate the connector side of the brown wire with heat shrink. The other side (going to the pump) will connect to terminal 87 of your new relay.
    • Dark Blue/Orange wire (Terminal 10 of C5): This is the 12V power source for the pump. Cut this wire about 1 inch from the connector. Insulate the connector side. The other side will connect to terminal 30 of your new relay.
    • Pink/Light Green wire (Terminal 38 of C5): This is the trigger wire from the PCM. Do not cut this wire. Solder a new wire to it, and connect this wire to terminal 86 of your new relay.
  4. Connect the relay:
    • Terminal 85: Connect to a clean metal ground point on the vehicle's body.
    • Terminal 86: Connect to the pink/light green trigger wire.
    • Terminal 30: Connect to the dark blue/orange power wire (from the TIPM).
    • Terminal 87: Connect to the brown wire that goes to the fuel pump.
  5. Add a fuse: Install the inline fuse holder on the wire going to terminal 30 (the power source). Use a 20-amp fuse.
  6. Secure everything: Mount the new relay to the body of the car near the TIPM using zip ties. Wrap all connections with electrical tape or heat shrink.
  7. Reconnect the battery and test. Turn the key to "ON." You should hear the fuel pump prime for 2 seconds. Then start the engine.

Why You Should Choose KEMSO Fuel Pump for Your 2012 Dodge Grand Caravan

If you have gone through the effort of diagnosing and bypassing the fuel pump relay, the last thing you want is a low-quality fuel pump that fails prematurely. For a reliable, long-lasting solution, consider the KEMSO Fuel Pump. KEMSO fuel pumps are designed as high-performance OEM replacements that meet or exceed factory specifications. They are built to deliver consistent flow and pressure, ensuring your Grand Caravan starts reliably every time. What truly sets KEMSO apart is the lifetime warranty that comes with every fuel pump. This means you install it once, and you are covered for as long as you own the vehicle. You can browse their complete product line and find the exact fit for your 2012 Dodge Grand Caravan at: https://www.kemsoracing.com/.

Final Thoughts

Finding the fuel pump relay on a 2012 Dodge Grand Caravan is straightforward once you know it is inside the TIPM. The real challenge is that it is not a replaceable part. The good news is that a bypass relay is a reliable, inexpensive, and DIY-friendly solution that has been used successfully by thousands of Grand Caravan owners. Always start with the simplest diagnosis: check the M25 fuse while cranking. If you confirm the relay is bad, do not rush to replace the entire TIPM. A $15 relay and an hour of your time can get your van back on the road. For high-quality replacement parts, including fuel pumps and relays, visit https://www.kemsoracing.com/.


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